Smith says you can use a different recipe for all three daily meals, or stick with the one you like the best. You should refrigerate any remaining smoothie and use it within 48 hours for optimal nutritional value.

You may also have several high-protein snacks throughout the day during the cleanse. She suggests apples, crunchy vegetables (carrots, broccoli, celery), hard-boiled eggs (two per day), or unsweetened peanut butter (two tablespoons per day).